描述

雷擊或感應(yīng)雷擊形成的沖擊電壓，有時(shí)也會(huì)造成變頻器的損壞。此外，當(dāng)電源系統(tǒng)一次側(cè)帶有真空斷路器時(shí)，短路開閉會(huì)產(chǎn)生較高的沖擊電壓。為防止因沖擊電壓造成過(guò)電壓損壞，通常需要在變頻器的輸入端加壓敏電阻等吸收器件。真空斷路器應(yīng)增加RC浪涌吸收器。若變壓器一次側(cè)有真空斷路器，應(yīng)在控制時(shí)序上，保證真空斷路器動(dòng)作前先將變頻器斷開。

我們這里有您急需的停產(chǎn)備件，

優(yōu)勢(shì)現(xiàn)貨，詢不到的，買不到的，請(qǐng)聯(lián)系我們！

絕 對(duì)優(yōu)勢(shì)，絕 對(duì)低價(jià)！絕 對(duì)正品，優(yōu)質(zhì)的產(chǎn)品，一流的服務(wù)，充足的庫(kù)存，

歡迎來(lái)電詢價(jià)，我們將會(huì)給您最優(yōu)惠的價(jià)格！

主營(yíng)：世界知名品牌的PLC、DCS系統(tǒng)備件模塊

①Allen-Bradley(美國(guó)AB)系列產(chǎn)品》

②Schneider(施耐德電氣)系列產(chǎn)品》

③General electric(通用電氣)系列產(chǎn)品》

④Westinghouse（美國(guó)西屋）系列產(chǎn)品》

⑤SIEMENS(西門子系列產(chǎn)品)》

⑥銷售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、PanasonicRobots、MOTOMAN Robots。

⑦estinghouse（西屋）：OVATION系統(tǒng)、WDPF系統(tǒng)、MAX1000系統(tǒng)備件。

⑧Invensys Foxboro（福克斯波羅）：I/A Series系統(tǒng)，F(xiàn)BM（現(xiàn)場(chǎng)輸入/輸出模塊）

順序控制、梯形邏輯控制、事故追憶處理、數(shù)模轉(zhuǎn)換、輸入/輸出信號(hào)處理、數(shù)

據(jù)通信及處理等。Invensys Triconex:冗余容錯(cuò)控制系統(tǒng)、基于三重模件冗余（TMR）

結(jié)構(gòu)的zui現(xiàn)代化的容錯(cuò)控制器。

⑨Siemens(西門子)：Siemens MOORE，Siemens Simatic C1，Siemens數(shù)控系統(tǒng)等。

⑩Bosch Rexroth（博世力士樂(lè)）：Indramat，I/O模塊,PLC控制器,驅(qū)動(dòng)模塊等。

◆Motorola（摩托羅拉）：MVME 162、MVME 167、MVME1772、MVME177等系列。

GE TVX X-ray Image Intensification System 1959 Ad

DENTAL PORTABLE MOBILE X- RAY MACHINE SYSTEM DIGITAL b9

DENTAL PORTABLE MOBILE X – RAY MACHINE SYSTEM DIGITAL p

DENTAL PORTABLE MOBILE X – RAY MACHINE SYSTEM w/DIGITAL

DENTAL PORTABLE MOBILE X – RAY MACHINE SYSTEM DIGITAL m

DENTAL PORTABLE MOBILE X – RAY MACHINE SYSTEM DIGITAL q

DENTAL PORTABLE MOBILE X- RAY MACHINE SYSTEM DIGITAL c1

DENTAL PORTABLE MOBILE X – RAY MACHINE SYSTEM DIGITAL m

DENTAL PORTABLE MOBILE X – RAY MACHINE SYSTEM DIGITAL n

1973 Bendix Airport Baggage X-Ray System 2-Page Ad

DENTAL PORTABLE MOBILE X-RAY MACHINE SYSTEM w/DIGITAL B

X-RAY POSITIONER SYSTEM GOOD FOR SUNI & SCHICK SIZE 2

Field Emission Flexitron 730 Flash X-Ray System 1962 Ad

X-RAY POSITIONER SYSTEM GOOD FOR SUNI & SCHICK SIZE 1

DENTAL PORTABLE MOBILE X- RAY MACHINE SYSTEM DIGITAL e1

DENTAL PORTABLE MOBILE X- RAY MACHINE SYSTEM DIGITAL e3

DENTAL PORTABLE MOBILE X – RAY MACHINE SYSTEM w/DIGITAL

Planar Systems Inc. iHBS212-08-Lite On 12X Blu-Ray Writ

Extreme Rage X-Ray Thermal Lens Goggle System Black

DENTAL PORTABLE MOBILE X – RAY MACHINE SYSTEM DIGITAL j

DENTAL PORTABLE MOBILE X- RAY MACHINE SYSTEM DIGITAL b8

Brand new LG 2 Target CD DVD & 10X Blu-Ray Burn systems

AMD PHENOM II X6 Desktop System BLUE-RAY!

DENTAL PORTABLE MOBILE X- RAY MACHINE SYSTEM DIGITAL e7

X-PLOR Version 3.1: A System for X-ray Crystallography

4×5 NEG.- Accu Ray container fill control system ’58

X-RAY POSITIONER SYSTEM GOOD FOR SUNI & SCHICK SIZE 1

DENTAL PORTABLE MOBILE X-RAY MACHINE SYSTEM w/DIGITAL

Extreme Rage X-Ray Protector Goggle System

DENTAL PORTABLE MOBILE X – RAY MACHINE SYSTEM w/DIGITAL

DENTAL PORTABLE MOBILE X- RAY MACHINE SYSTEM DIGITAL e4

DENTAL PORTABLE MOBILE X-RAY MACHINE SYSTEM w/DIGITAL

EXTREME RAGE X RAY V2.0 GOGGLE SYSTEM # 21410 NIP

DENTAL PORTABLE MOBILE X- RAY MACHINE SYSTEM DIGITAL e2

DENTAL PORTABLE MOBILE X- RAY MACHINE SYSTEM DIGITAL e2

DENTAL PORTABLE MOBILE X- RAY MACHINE SYSTEM DIGITAL e4

DENTAL PORTABLE MOBILE X- RAY MACHINE SYSTEM DIGITAL e3

DENTAL PORTABLE MOBILE X- RAY MACHINE SYSTEM DIGITAL e6

DENTAL PORTABLE MOBILE X- RAY MACHINE SYSTEM DIGITAL e8

DENTAL PORTABLE MOBILE X- RAY MACHINE SYSTEM DIGITAL e1

DENTAL PORTABLE MOBILE X- RAY MACHINE SYSTEM DIGITAL e5

IDDC Model 1200 Porta Ray Portable X Ray System

Mini Scan X-Ray Letter & Parcel Inspection System

DENTAL PORTABLE MOBILE X – RAY MACHINE SYSTEM w/DIGITAL

DENTAL PORTABLE MOBILE X – RAY MACHINE SYSTEM w/DIGITAL

Kodak 2100 Intraoral X-ray System

DENTAL PORTABLE MOBILE X – RAY MACHINE SYSTEM DIGITAL 2

DENTAL PORTABLE MOBILE X – RAY MACHINE SYSTEM w/DIGITAL

DENTAL PORTABLE MOBILE X – RAY MACHINE SYSTEM w/DIGITAL

DENTAL PORTABLE MOBILE X – RAY MACHINE SYSTEM w/DIGITAL

DENTAL PORTABLE MOBILE X – RAY MACHINE SYSTEM DIGITAL 1

J B 70 INTRAORAL X-RAY SYSTEM THAT IS SMARTER

DENTAL PORTABLE MOBILE X-RAY MACHINE SYSTEM DIGITAL

GE Medical Systems X-Ray, Mamo Camera Printer, 5130/240

NEW I-MAX Easy Digital Dental Panoramic X-Ray System

NEW I-MAX Touch Digital Dental Panoramic X-Ray System

DENTAL PORTABLE MOBILE X RAY MACHINE SYSTEM w/DIGITAL

DENTAL PORTABLE MOBILE X – RAY MACHINE SYSTEM w/DIGITAL

DENTAL PORTABLE MOBILE X-RAY MACHINE SYSTEM DIGITAL

DENTAL PORTABLE MOBILE X-RAY MACHINE SYSTEM w/DIGITAL

Replacement remote E-Stop for Iluma X ray system New

DENTAL PORTABLE MOBILE X-RAY MACHINE SYSTEM DIGITAL

Scanray Corp X-RAY System Control Board 08-1353-01 xray